Category: How to

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How To Install Let’s Encrypt SSL using DirectAdmin

Let’s Encrypt SSL using DirectAdmin

Let’s Encrypt is a free open certificate authority (CA) that provides free certificates for websites and other services. The service, which is backed by the Electronic Frontier Foundation, Mozilla, Cisco Systems, and Akamai. Unfortunately, LetsEncrypt.org certificates currently have a 3 month lifetime. This means you’ll need to renew your certificate quarterly for now.

Table of Contents

Step 1. First let’s start by ensuring your system is up-to-date.

Step 2. Login to your DirectAdmin VPS via SSH as user root.

Step 3. Get the latest Let’s Encrypt script

Step 4. Configure DirectAdmin.

 

Prerequisites

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step install Let’s Encrypt SSL using DirectAdmin on CentOS 7 server.
Install Let’s Encrypt SSL using DirectAdmin

Step 1. First let’s start by ensuring your system is up-to-date.

yum clean all
yum -y update

Step 2. Login to your DirectAdmin VPS via SSH as user root.

First, Login to your DirectAdmin VPS:

ssh root@Your_IP_Adress -p Port_number

Step 3. Get the latest Let’s Encrypt script

Next, we will clean the software list and make sure we’ve got the latest Let’s Encrypt script:

cd /usr/local/directadmin/custombuild/
./build clean all
./build update
./build letsencrypt

Then, rewrite the configuration files:

./build rewrite_confs

Step 4. Configure DirectAdmin.

In order to enable Let’s Encrypt support on DirectAdmin, open the DirectAdmin configuration file:

nano /usr/local/directadmin/conf/directadmin.conf
letsencrypt=1

You should also make sure that SNI is enabled in DirectAdmin by adding/modifying this line:

enable_ssl_sni=1

Save the file and restart DirectAdmin for the changes to take effect:

echo "action=directadmin&value=restart" >> /usr/local/directadmin/data/task.queue; /usr/local/directadmin/dataskq d2000

With this step Let’s Encrypt is enabled in DirectAdmin and we can proceed with the installation. Login to the control panel at https://yourdomain:2222 with your username and go to ‘SSL Certificates’ under ‘Advanced Features’:
DirectAdmin-SSL-2
If the SSL option is disabled for the selected domain as shown in the screenshot below, you need to enable it by clicking ‘here’:
DirectAdmin-SSL
If you properly enabled Let’s Encrypt, you will see the ‘Free and automatic certificate from Let’s Encrypt’ option. Check the check-box next to the Let’s Encrypt option and enter all necessary details for your domain below:
DirectAdmin-SSL-1
Then click the ‘Save’ button and a free Let’s Encrypt SSL certificate will be automatically installed.

Finally Restart the web server for the changes to take effect:

systemctl restart httpd

Congratulation’s! You have successfully installed Install Let’s Encrypt SSL DirectAdmin on CentOS 7. Thanks for using this tutorial for installing Let’s Encrypt SSL using DirectAdmin on CentOS 7 systems. For additional help or useful information, we recommend you to check the official Apache Zeppelin web site.

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How To Install Vue.JS on CentOS 7

Vue

Vue.JS is a JavaScript progressive front-end framework for building User Interfaces (UI). Vue is a monolithic framework and designed to be incrementally adoptable. The core library is concentrated on the view layer only and is easy to pick up and incorporate with other libraries or present projects, Additionally Vue.JS is perfectly capable of developing complicated Single-Page Software (SPA).

Table of Contents

Step 1. First let’s start by ensuring your system is up-to-date.

Step 2. Installing Node.Js and NPM.

Step 3. Installing Vue.JS.

Prerequisites

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step install Vue.JS on CentOS 7 server.
Install Vue.JS on CentOS 7

Step 1. First let’s start by ensuring your system is up-to-date.

yum clean all
yum -y update

Step 2. Installing Node.Js and NPM.

First of all, we need to install Node.JS and NPM:

curl --silent --location https://rpm.nodesource.com/setup_8.x | sudo bash -

Next, install Node.js and NPM with the following command:

yum install nodejs

You can check and verify your Node.js and NPM that you have installed using the following commands:

node -v
npm -v

Step 3. Installing Vue.JS.

NPM is the recommended installation method when building large scale applications with Vue. It pairs nicely with module bundlers such as Webpack or Browserify. Vue also provides accompanying tools for authoring Single File Components:

npm install -g vue-cli

Now you can switch to a directory where you want to store your project, and then install Vue.js files with the command below:

vue init webpack first-project

Then, switch to your project directory to install dependencies:

cd first-project
npm install

Now you have installed Vue.JS completely and you can start developing and testing it right away, executing the following command will start serving your project:

npm run dev

Finally, you can see that your project is now running on:

http://localhost:8081

Congratulation’s! You have successfully installed Vue.JS on CentOS 7. Thanks for using this tutorial for installing Vue.JS on CentOS 7 systems. For additional help or useful information, we recommend you to check the official Vue.JS web site.

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How To Install Opera Web Browser on CentOS 7

Opera Web Browser on CentOS 7

Opera is a fast, secure and easy-to-use internet browser which works well on most of the Linux distributions. It’s now designed with an integrated ad blocker, battery saver and free VPN, so it saves time and resources for its own users. Also, Opera browser is stuffed with several other innovative features such as speed dialup, pop-up blocking, personal browsing and tabbed browsing.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step install Opera Web Browser on CentOS 7 server.
Install Opera Web Browser on CentOS 7

Step 1. First let’s start by ensuring your system is up-to-date.

yum clean all
yum -y update

Step 2. Installing Opera Web Browser on CentOS 7.

First, download latest opera version for your Linux distribution go to Opera download page:

wget http://get.geo.opera.com/ftp/pub/opera/desktop/53.0.2907.68/linux/opera-stable_53.0.2907.68_amd64.rpm

After downloading Opera rpm packages, lets install it using rpm command line utility:

rpm -ivh opera-stable_53.0.2907.68_amd64.rpm

Step 3. Accessing Opera Web Browser.

Once the Opera installation is complete, use following command to open browser from GUI interface or use GUI menu to start it.

opera

Congratulation’s! You have successfully installed Opera Browser. Thanks for using this tutorial for installing Opera Web Browser on CentOS 7 systems. For additional help or useful information, we recommend you to check the official Opera web site.

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How To Install Ionic Framework on CentOS 7

Ionic Framework on CentOS 7

Ionic Framework is helpful for building Android and iOS programs faster. You must install those applications to create a hybrid mobile application.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step install Ionic Framework on CentOS 7 server.
Install Ionic Framework on CentOS 7

Step 1. First let’s start by ensuring your system is up-to-date.

yum clean all
yum -y update

Step 2. Installing Node.js.

Use the below command to install Node.js:

curl -sL https://rpm.nodesource.com/setup_8.x | sudo -E bash -
sudo yum install nodejs 5.

Step 3. Installing Cordova.

Run the following command to install Cordova on your system using npm command:

sudo npm install -g cordova

Step 4. Installing Ionic Framework on CentOS 7.

After installing Cordova, use the below command to install Ionic Framework:

sudo npm install -g ionic

To verify the ionic installation:

ionic -v

Step 5. Create Ionic Application.

First, create a new Cordova project on your computer using the following command:

ionic start Helloidr00t blank

Now use one of the following commands to enable iOS or Android platform:

ionic platform add ios
ionic platform add android

Congratulation’s! You have successfully installed Install Ionic Framework. Thanks for using this tutorial for installing Install Ionic Framework on CentOS 7 systems. For additional help or useful information, we recommend you to check the official Install Ionic Framework web site.

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How To Install Matomo on CentOS 7

Matomo on CentOS 7

Matomo or formerly known as Piwik, is an open source web analytics application. It rivals Google Analytics and includes even more features and allows you to brand your brand and send out custom daily, weekly, and monthly reports to your clients.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root accge of Linount, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation Matomo on a CentOS 7 server.
Install Matomo on CentOS 7

Step 1. First let’s start by ensuring your system is up-to-date.

yum clean all
yum -y update

Step 2. Install LAMP server.

A CentOS 7 LAMP stack server is required. If you do not have LAMP installed, you can follow our guide here. Also install required PHP modules:

yum -y install php-gd php-imap php-ldap php-odbc php-pear php-xml php-xmlrpc php-mbstring php-mcrypt php-mssql php-snmp php-soap php-tidy curl curl-devel

Step 3. Installing Matomo on CentOS 7.

First thing to do is to go to Matomo’s download page and download the latest stable version of Piwik:

cd /var/www/html/
wget https://builds.matomo.org/piwik.zip

Unpack the Matomo archive to the document root directory on your server:

unzip matomo.zip -d /var/www/html/
mv /var/www/html/piwik/ /var/www/html/matomo/

We will need to change some folders permissions:

chown -R apache:apache /var/www/html/matomo

Step 4. Configuring MariaDB for Matomo.

By default, MariaDB is not hardened. You can secure MariaDB using the mysql_secure_installation script. you should read and below each steps carefully which will set root password, remove anonymous users, disallow remote root login, and remove the test database and access to secure MariaDB:

mysql_secure_installation

Configure it like this:

- Set root password? [Y/n] y
- Remove anonymous users? [Y/n] y
- Disallow root login remotely? [Y/n] y
- Remove test database and access to it? [Y/n] y
- Reload privilege tables now? [Y/n] y

Next we will need to log in to the MariaDB console and create a database for the Matomo. Run the following command:

mysql -u root -p

This will prompt you for a password, so enter your MariaDB root password and hit Enter. Once you are logged in to your database server you need to create a database for Matomo installation:

MariaDB [(none)]> CREATE DATABASE matomo;
MariaDB [(none)]> GRANT ALL PRIVILEGES ON matomo.* TO 'matomo'@'localhost' IDENTIFIED BY 'PASSWORD';
MariaDB [(none)]> FLUSH PRIVILEGES;
MariaDB [(none)]> \q

Step 5. Configuring Apache web server for Matomo.

We will create Apache virtual host for your Matomo website. First create ‘/etc/httpd/conf.d/vhosts.conf’ file with using a text editor of your choice:

nano /etc/httpd/conf.d/vhosts.conf
IncludeOptional vhosts.d/*.conf

Next, create the virtual host:

mkdir /etc/httpd/vhosts.d/
nano /etc/httpd/vhosts.d/yourdomain.com.conf

Add the following lines:

ServerAdmin [email protected]
DocumentRoot /var/www/html/matomo
ServerName yourdomain.com
ServerAlias www.yourdomain.com
ErrorLog "/var/log/httpd/yourdomain.com-error_log"
CustomLog "/var/log/httpd/yourdomain.com-access_log" combined

<Directory "/var/www/html/matomo/">
DirectoryIndex index.html index.php
Options FollowSymLinks
AllowOverride All
Require all granted

Save and close the file. Restart the Apache service for the changes to take effects:

systemctl restart httpd.service

Step 6. Accessing Matomo web analytics application.

Matomo will be available on HTTP port 80 by default. Open your favorite browser and navigate to http://yourdomain.com/piwik or http://server-ip/piwik and complete the required the steps to finish the installation. If you are using a firewall, please open port 80 to enable access to the control panel.
install-matomo
Congratulation’s! You have successfully installed Matomo. Thanks for using this tutorial for installing Install Matomo open source web analytics application on CentOS 7 system. For additional help or useful information, we recommend you to check the official Matomo on web site.

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How To Install Iftop Network Bandwidth Monitoring on Linux

Iftop Network Bandwidth Monitoring on Linux

iftop is a command line tool that shows a list of active network connections between local host and any remote host, sorted by their bandwidth usage. The list of top-ranking network connections (in terms of bandwidth usage) is periodically refreshed in a ncurses-based user interface.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation Iftop Network Bandwidth Monitoring on a Linux server.
Install Iftop Network Bandwidth Monitoring on Linux

Step 1. First make sure that all your system packages are up-to-date by running these following apt-get commands in the terminal.

### CentOS ###
sudo yum clean all
sudo yum -y update

### Ubuntu ###
sudo apt-get update
sudo apt-get upgrade

Step 2. Installing Interface TOP (IFTOP) on Linux.

To install iftop on Ubuntu, Mint or Debian:

sudo apt-get install iftop

To install iftop on CentOS:

sudo yum install epel-release
sudo yum install iftop

Step 3. Using IFTOP.

iftop is very simple to use. Just type the iftop command on terminal with root privileges to display the bandwidth usage of the first network interface. Press Q to exit from the iftop command output:
iftop

Congratulation’s! You have successfully installed Interface TOP (IFTOP). Thanks for using this tutorial for installing Iftop Network Bandwidth Monitoring on Ubuntu 18.04 LTS (Bionic Beaver) system. For additional help or useful information, we recommend you to check the official iftop web site.

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How To Install Oracle JDK 9 on CentOS 7

Install Oracle JDK 9 on CentOS 7

There are many programs and scripts that require java to run it, but usually Java is not installed by default on VPS or Dedicated Server. This article assumes you have at least basic knowledge of linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple. In this tutorial we will learn how to Install Oracle JDK 9 on CentOS 7.

Install Oracle JDK 9 on CentOS 7

Step 1. First, remove the Java 1.6 or 1.7 have been installed already, you can uninstall them using the following commands.

yum remove java-1.6.0-openjdk
yum remove java-1.7.0-openjdk

Step 2. Downloading and Installing Oracle JDK 9 on CentOS 7.

First, go to Java 9 official website of Oracle, select the appropriate version and then download:

wget --no-cookies --no-check-certificate --header "Cookie: oraclelicense=accept-securebackup-cookie" \
http://download.oracle.com/otn-pub/java/jdk/9.0.4+11/c2514751926b4512b076cc82f959763f/jdk-9.0.4_linux-x64_bin.tar.gz

Next, change the directory to the location where you want to install the JDK, then move the .tar.gz archive binary to the current directory:

tar zxf jdk-9.0.4_linux-x64_bin.tar.gz -C /usr/local

Step 3. Install JAVA using alternatives.

After extracting archive file use alternatives command to install it. alternatives command is available in chkconfig package:

cd /usr/local/jdk-9.0.4/
alternatives --install /usr/bin/java java /usr/local/jdk-9.0.4/bin/java 2
alternatives --config java



There is 1 program that provides 'java'.

Selection Command
-----------------------------------------------
*+ 1 /usr/local/jdk-9.0.4/bin/java

Enter to keep the current selection[+], or type selection number: 1

At this point JAVA 9 has been successfully installed on your system. We also recommend to setup javac and jar commands path using alternatives:

alternatives --install /usr/bin/jar jar /usr/local/jdk-9.0.4/bin/jar 2
alternatives --install /usr/bin/javac javac /usr/local/jdk-9.0.4/bin/javac 2
alternatives --set jar /usr/local/jdk-9.0.4/bin/jar
alternatives --set javac /usr/local/jdk-9.0.4/bin/javac

Step 4. Checking Installed java version.

[email protected] ~# java -version
java version "9.0.4"
Java(TM) SE Runtime Environment (build 9+181)
Java HotSpot(TM) 64-Bit Server VM (build 9+181, mixed mode)

Step 5. Setup global environment variables.

We can easily set the environment variables using the export command as shown below:

Setup JAVA_HOME Variable:

export JAVA_HOME=/usr/local/jdk-9.0.4

Setup JRE_HOME Variable:

export PATH=$PATH:/usr/local/jdk-9.0.4/bin

Congratulation’s! You have successfully installed Oracle JDK 9. Thanks for using this tutorial for installing Oracle JDK 9 on CentOS 7 systems. For additional help or useful information, we recommend you to check the official Oracle web site.